Boyd declined to release additional details as the investigation was continuing.

Williams, a recovering alcoholic, had recently checked into a rehab, according to news reports. He also had a heart valve operation in 2009.

Robin McLaurin Williams was born in Chicago and spent part of his childhood in Michigan until the family moved to Marin. He graduated from Redwood High School in Larkspur in 1969 and attended College of Marin.

After achieving fame on the television comedy “Mork & Mindy,” he went on to star in dozens of movies. He was nominated for the Academy Award three times and won for his role in “Good Will Hunting” in 1997.